I follow Sailor Steve's DID style. SH3Commander's realistic career length option ticked, dump the Kaleun when he gets assigned a desk top or killed, and start a new career from that point of time. If the Kaleun survives the boat survives as well and I might keep the boat and the experienced crew for the next Kaleun - so basically I only lose the tonnage and the medals. However I've never made it past late 1943 yet, since I decided to go all the way back to 1939 after getting killed late 1943. (I was kind of battle fatigued and decided I wanted to play in happier times, with less radar, airplanes and elite destroyers and hedgehogs, and more deck gun shooting - playing hardcore DID that time actually made my life a lot easier
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